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+<table class="head">
+ <tr>
+ <td class="head-ltitle">OSSL(4)</td>
+ <td class="head-vol">Device Drivers Manual</td>
+ <td class="head-rtitle">OSSL(4)</td>
+ </tr>
+</table>
+<div class="manual-text">
+<section class="Sh">
+<h1 class="Sh" id="NAME"><a class="permalink" href="#NAME">NAME</a></h1>
+<p class="Pp"><code class="Nm">ossl</code> &#x2014; <span class="Nd">driver
+ using OpenSSL assembly routines</span></p>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">SYNOPSIS</a></h1>
+<p class="Pp">To compile this driver into the kernel, place the following lines
+ in your kernel configuration file:</p>
+<div class="Bd Pp Bd-indent"><code class="Cd">device crypto</code>
+<br/>
+<code class="Cd">device cryptodev</code>
+<br/>
+<code class="Cd">device ossl</code></div>
+<p class="Pp">Alternatively, to load the driver as a module at boot time, place
+ the following line in <a class="Xr">loader.conf(5)</a>:</p>
+<div class="Bd Pp Bd-indent Li">
+<pre>ossl_load=&quot;YES&quot;</pre>
+</div>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1>
+<p class="Pp">The OpenSSL distribution includes architecture-specific
+ implementations for some commonly used cryptographic algorithms. This driver
+ adds a wrapper around these routines permitting them to be used by in-kernel
+ cryptography consumers such as kernel TLS and IPsec.</p>
+<p class="Pp">The <code class="Nm">ossl</code> driver includes
+ architecture-specific implementations for the following architectures:</p>
+<p class="Pp"></p>
+<ul class="Bl-bullet Bl-compact">
+ <li>arm64</li>
+ <li>amd64</li>
+ <li>i386</li>
+</ul>
+<p class="Pp">The <code class="Nm">ossl</code> driver includes support for the
+ following algorithms:</p>
+<p class="Pp"></p>
+<ul class="Bl-bullet Bl-compact">
+ <li>AES-CBC</li>
+ <li>AES-GCM (amd64 only)</li>
+ <li>ChaCha20</li>
+ <li>ChaCha20-Poly1305 (RFC 8439)</li>
+ <li>Poly1305</li>
+ <li>SHA1</li>
+ <li>SHA1-HMAC</li>
+ <li>SHA2-224</li>
+ <li>SHA2-224-HMAC</li>
+ <li>SHA2-256</li>
+ <li>SHA2-256-HMAC</li>
+ <li>SHA2-384</li>
+ <li>SHA2-384-HMAC</li>
+ <li>SHA2-512</li>
+ <li>SHA2-512-HMAC</li>
+</ul>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="SEE_ALSO"><a class="permalink" href="#SEE_ALSO">SEE
+ ALSO</a></h1>
+<p class="Pp"><a class="Xr">crypto(4)</a>, <a class="Xr">intro(4)</a>,
+ <a class="Xr">ipsec(4)</a>, <a class="Xr">crypto(7)</a>,
+ <a class="Xr">crypto(9)</a></p>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="HISTORY"><a class="permalink" href="#HISTORY">HISTORY</a></h1>
+<p class="Pp">The <code class="Nm">ossl</code> driver first appeared in
+ <span class="Ux">FreeBSD 13.0</span>.</p>
+</section>
+</div>
+<table class="foot">
+ <tr>
+ <td class="foot-date">May 4, 2023</td>
+ <td class="foot-os">FreeBSD 15.0</td>
+ </tr>
+</table>